Closing device for large openings which are essentially horizontal and are made water tight in all parts



July 26, 1932.

m m N E O U l G u m H J A m l i F CLOSING DEVICE FOR LARGE OPENINGS WHICH ARE ESSENTIALLY HORIZONTAL AND ARE MADE WATER TIGHT IN ALL PARTS Fig.3

Patented July 26, 1932 UNITED STATES PATENT OFFICE ALBERT HUG-UENIN, OF PARIS, FRANCE CLOSING DEVICE FOR LARGE OPENINGS WHICH ARE ESSENTIALLY HORIZONTAL AND ARE MADE WATER TIGHT IN ALL PARTS Application filed July 10, 1928, Serial No. 291,667, and in France July 23, 1927.

Known devices are employed for the closmg of large openings, in which the use of a rack and its operation under water 1n cooperation with a pinion mounted on the closing device, will offer practical disadvantages of a very serious nature.

The said invention relates to a device for the simultaneous control of the two movements of the gate, while at the same time the 1 entire mechanism is placed out of contact with the water.

The appended drawing shows by way of example a constructional form of the said apparatus.

Fig. 1 is a partial view of the movement in elevation.

Figs. 2 and 3 are respectively an elevational view and a general plan view.

Fig. 4 is a horizontal section made according to line A-A of Fig. 1.

As shown in Fig. 1, 2 is the main body of the gate and 3 its shaftwhich extends beyond the lateral face of the opening in a recess 4,

formed in the side walls which serve as lateral partitions for the circulation openings.

The said shaft carries two rollers 5--6 coacting with the respective roller races 7-8 mounted in the side wall on either side of the recess 4 along the whole height of-the vertical movement of the gate 2. As the pressure on the closing element may work either one side or the other .and is changing during both the upwards and the downwards motion, it is necessary that for the correct transmission of the said water pressure on the closing element for each direction and for both the possible motions, upwards and downwards, there is a special roller transmitting the water pressure on the respective roller race. Thus each end of the closing element bears on its shaft 3, two rollers 56 rolling respectively on the races 7-8. V

A screwthreaded rod 9, which holds the tenon 3 near its end, is screwed into a hollow shaft 10 whoselo'wer part is threaded, and the rotation of said shaft by the worm gearin 11 causes the gate 2'to rise and descend.

To effect at the same time a very slow rotation of the gate 2 (about 230). the hollow shaft 10 isscrewed into the hollow shaft 12 which ends in a bevel gear 13 at its lower part and is held fast in the axial direction by the device 14 at the lower end of the lifting rod. The pinion 13 acts upon a bevel gear wheel 15 mounted on the shaft 3 and which is thus connectedwith the gate 2. In order to effect a slow rotation of the gate 2 during its upward movement, the screw thread of the rod shown at 17 is somewhat different from 6D the thread 16 on the rod 9, and since the hollow'shaft 12 is connected with the rod 9 as concerns the axial motion, this causes a slow rotation during the rise or descent of the hollow shaft 12 relatively to the rod 9 and hence a slow rotation of the gate 2 in the proper direction for the rise and descent of the gate.

The control of these two movements by means of a set of worm gearing 11 which is "7 irreversible will assure for each possible position of the gate 2 during its course, both upwardly and downwardly, a complete stability, whatever may be the external forces to which it is subjected. 7'7 It will be an easy matter to enclose the I whole of the said mechanism in a watertight casing by means of afixed sheath 19 with slidable stufiing box 20 on a sheath 18 fixed to a stationary part 24 of the control IHGCllfl-TS nism; the sheath 19 surrounds at its lower part 20a, the whole of the mechanism around the shaft 3, and the water is shut off by the st-ufling box 21 which is properly constructed in such a manner as to require only an initialigg. adjustment.

In order to readily support the weight of the sheath 19, this latter is mounted at the end of the shaft 3 by means of a bearing 22, and the said sheath is also guided in a fixed""9c sleeve 23 which may be placed near the gearing, between the hollow shaft 10 and the solid shaft 9.

The fixed bearings 2425 complete, in

principle, the arrangement of the hollowiu5 shaft 10 together with its worm gearing 11 which constitutes the sole controlling element of the entire'mechanism.

In this manner, the whole of the controlling mechanism is entirely protected from'lw j 2 i i,ss,575

the action of the water, whereby the dura- ,tion of the said apparatus .is assured. 1

' As shown in Figs. Qand 3, it is practicable to actuate the two controls of the'aforesa'id 5 mechanism situated at each en d'of the gate 2 by asingle motor 26 which drives-40y worm gearing 27 and bevel gearing 2-8 "and'Q9- V the'two main controls on either side of the ate; 1 log The entire construction is thus of a most to severe stresses in the-most unfavorable Conditions. e

The principal object of the said invention 15 is to provide for the simultaneous rise and .rotation of the gate by a single external con-' trohacting at one 'oribotlr'ends ofthe gate, 7 their'connhon" drive i s' given solely by 9 thy other suitable means.

'i' a m e e q I In a device-flier closing large "openings which are essentially horizontal and are made water-tightin all-parts, the combination of a closing element adapted torotate and to be displaced in a direction perpendicular to its 7 'axlisfof mtatioma hollo-wrotating shaft, 7. V heldstationary in the direction of its axis and having two t'hreads 'ofdifferent pitches on its inner and outer surfaces; a nonrotata'ble .ro'd'havixng a thread in engagement with the e rod being connected totheesaidclosing elemen't for imo'ifingit ina directionperpendicular'to theaxisjof rotation of the latter, and

la second hollow "rotating, shaft" having a thread in engagement with the outer thread ofjthe' first hollo w' I shaft, this second hollow 1 shaft -being connected, on the one hand, to the 7 said rod forintegra lly following-the axial displacementsof this red, and on' the other e e initting'its movementof rotationto-t'helatter.

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swbstan-tia'lnature and can thus be subjected. e v p 7 way of example andmay obviously beefi'ected "inner thread of 'thesaid holloWshaft, this d, 330' h -said l ing elment}for'transi 

